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// this work for additional information regarding copyright ownership.
// The ASF licenses this file to You under the Apache License, Version 2.0
// (the "License"); you may not use this file except in compliance with
// the License.  You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
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// distributed under the License is distributed on an "AS IS" BASIS,
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using System;

namespace Math3.analysis
{
    /// <summary>
    /// Extension of <see cref="UnivariateFunction"/> representing a differentiable 
    /// univariate real function.
    /// </summary>
    [Obsolete("Replaced by UnivariateDifferentiableFunction")]
    public interface DifferentiableUnivariateFunction : UnivariateFunction
    {
        /// <summary>
        /// Returns the derivative of the function
        /// </summary>
        /// <returns>the derivative function</returns>
        UnivariateFunction derivative();
    }
}